Cornus officinalis, a wild jujube, or jujube, jujube peel. It is a deciduous small tree belonging to Solanum of Cornaceae. The single leaf is opposite, the first leaf blooms in summer, and the drupe is yellow, oval and red when it matures, so it can be eaten as medicine.

It tastes sour and slightly warm.

The ingredients include cornuside, strychnine, saponin, tannin, vitamin A-like substance, gallic acid, malic acid and tartaric acid.

Pharmacological animal experiments show that Cornus officinalis has diuretic and antihypertensive effects, can increase leukopenia caused by chemotherapy and radiotherapy, and inhibit Shigella dysenteriae and Staphylococcus aureus.